Her actions have created turmoil for her party, a fact underscored by the resignations of stalwart MP Kennedy Graham and colleague David Clendon.
One has to admire her commitment to the causes she believes in, but Mrs Turei should have been upfront about everything from the beginning and immediately repaid the money.
There is no doubt most New Zealanders have sympathy for young mothers struggling to survive on a benefit. What they probably find less palatable is a well-paid politician being economical with the truth and using those same single mothers as a shameless ploy to grab votes.
The Green argument will be that her offending was fairly minor and the focus should instead be on big corporate ripoffs.
But, Mrs Turei has tarnished her party's brand at a time when it was starting to get much needed cut through with middle New Zealand, thanks to some good environmental policies. She won't be a minister of the crown if her party gets into a coalition government, so she is not going to have a voice of influence anyway.
Mrs Turei may become a martyr to some, but the danger for her is that many New Zealanders will simply see her as a politician who can't be trusted.